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A33439 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A33439: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.469 INCHES NOMINAL IN, outside_diameter: 0.719 INCHES NOMINAL IN, style_designator: KEY, surface_treatment: CADMIUM OVERALL, material_thickness: 0.032 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-568-4447, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
A33439
NSN: 5310-00-568-4447
FSC: 5310 — Nuts and Washers
CAGE: K0967 — MBDA UK LTD (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.469 INCHES NOMINAL IN
outside_diameter0.719 INCHES NOMINAL IN
style_designatorKEY
surface_treatmentCADMIUM OVERALL
material_thickness0.032 INCHES NOMINAL IN
external_prebent_key_width0.109 INCHES NOMINAL IN
external_prebent_key_length0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
internal_straight_key_width0.062 INCHES NOMINAL IN
overall_distance_including_keys0.749 INCHES NOMINAL IN
distance_from_centerline_to_top_of_internal_key0.2035 INCHES NOMINAL IN
distance_from_centerline_to_inside_of_prebent_key0.359 INCHES NOMINAL IN
NSN5310-00-568-4447
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A33439 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERNAL STRAIGHT KEY WIDTH: 0.062 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.2035 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.359 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.749 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 0.719 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.062 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.2035 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.359 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.749 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER0.719 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
EXTERNAL PREBENT KEY WIDTH0.109 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
Q314850050Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
29-761Reference document
Same NSN cross-reference
Reference document — Secondary reference
8531270Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A33439?
A33439 is a WASHER,KEY.
What parts can replace A33439?
There are 3 known substitutes for A33439: Q314850050, 29-761, 8531270. Substitute compatibility should be verified for your specific system.
What is the NSN for A33439?
A33439 is cataloged in the U.S. Government catalog under NSN 5310-00-568-4447. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.